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9.3.3 Slag Handling and Utilization. The most common handling method for slag is to tap the slag directly into a slag pit filled with water. The slag solidifies, cools down, and is removed from the pit to a dump or stockpile area. Another method is to granulate the slag by allowing the slag to flow through a set of water jets.
Ferro chrome slag may contain chromium in +3 and +6 oxidation states. Separation and determination of chromium content of the slag samples collected from Jindal Ferro Alloys Corporation, (Kottha ...
Beneficiating of ferrochrome slag (FCS) waste material is envisaged as a means of achieving sustainable recovery of Mg. Previous studies have used sulphuric …
Ferrochrome (FeCr) slag is a waste material obtained from the manufacturing of ferrochromium alloy. Typically, it contains 30% silicon dioxide (SiO2), 26% aluminium oxide (Al2O3) and 23% magnesium oxide (MgO) in different phases such as spinel and fosterite, with minor traces of ferrous/ferric oxides, chrome oxides and 2% calcium oxide (CaO).
Huge amount of ferrochrome slag, a solid waste is being generated from submerged electric arc furnace during manufacturing of ferrochrome alloy. The waste slag contains about 6–12% chromium as chromium oxide and it has the potentiality of releasing hazardous chromium compounds. Although chromium exists in the slag as highly …
The present research aims to analyze the comminution behavior of ferrochrome slag using high-pressure grinding rolls. The laboratory bench scale high-pressure grinding rolls were used to study the three significant variables on the grinding efficiency of ferrochrome slag. The Central Composite Design was used to study the …
Section snippets Ferrochrome slag production. FCS is generated as a by-product during the production of ferrochrome (FC) alloy that consists mainly of chromium and iron, containing 50–70% of chromium by weight and various amounts of iron, carbon, and other elements [11].
The vast majority of ferrochrome produced is charge chrome, which has a lower chrome content ratio. Used most commonly in stainless steel, it is mainly produced in South Africa. Low carbon and medium carbon ferrochrome is used in the manufacture of special steels. Low carbon ferrochrome can be used to produce superalloys.
The results show that the molten salt extraction process offers a promising route towards the recovery of metal values from slags and low grade ores. Composition …
As a type of metallurgical solid waste with a significant output, chromium-containing metallurgical dust and slag are gaining increasing attention. They mainly include stainless steel dust, stainless …
Ferrochrome slag is a by-product produced during the production of ferrochrome alloy steel in submerged electrical arc furnace. Around 1.1–1.6 ton slag is generated per ton of ferrochrome produced depending on feed materials. (S.K. Nath, 2018). Ferrochrome slag is …
However, mineralogy of ferrochrome slag is difficult to interpret, because of the presence of synthetic minerals and chromium in different oxidation states. EDAX analysis of ferrochrome slag (Table 9) at different spots (Fig. 6d) shows a clear difference between major slag phases with minor specks of metal. Fe and Cr are the major …
The results reveal that the low-grade siliceous chromite ore from Ghutrigaon is considered as waste as it contains only 16% of Cr 2 O 3 and ~ 55% SiO 2. The …
Ferrochrome slag is waste resulted from the manufacture process of ligature melting. It is a porous material of dark grey-green colour with 2530 kg/m ³ density and the open pores size from 1mm to ...
Abstract. Ferrochrome slag (FCS) is a by-product of ferrochrome industries and is produced during the extraction of ferrochrome from chromite ore. The …
Wu used FactSage software to simulate SiO 2-CaO-Cr 2 O 3 ternary slag and SiO 2-CaO binary slag, also to correction the slag basicity depend on the slag system is complicated, from the data can be concluded that out-feeding temperature should be controlled at 1450 °C and basicity should be controlled at 1.6 to 1.8, and the final slag …
Ferrochrome slag (FS) having favourable mechanical properties) may be gainfully utilised as concrete aggregate. The concrete specimens with FS, natural stones (NS) and NS concrete mixed with 2% chromium nitrate salt (CR) as coarse aggregate were prepared. The samples were cured in aggressive curing solution like sulphuric acid …
In the present study, an effort has been made to characterize ferrochrome slag, a less explored industrial waste as a construction material in general and FS as a base material with cement and fly ash for CLSM material, in particular. Different tests such as scanning electron microscope (SEM), X-ray diffraction (XRD), X-ray fluorescence …
Ferrochrome slag (FCS) is a by-product of ferrochrome industries and is produced during the extraction of ferrochrome from chromite ore. The chemical composition of FCS comprises of 27–33% SiO 2, 15–25% Al 2 O 3, 20–35% MgO, and …
The present research aims to analyze the comminution behavior of ferrochrome slag using high-pressure grinding rolls. The laboratory bench scale high-pressure grinding rolls were used to study the ...
Stone coal was successfully used to synergistically treat stainless steel slag (SSS) to recover both chromium (Cr) and vanadium (V). The alloy with a Cr grade of 70.84% and a V grade of 2.36% can be obtained by keeping SSS and stone coal at a ratio of 50 : 31 at 1600 °C for 120 min.
The high temperatures in the furnace cause the chromite to react with the carbonaceous material, producing ferrochrome and slag as byproducts. Refining: Ferrochrome produced from smelting may undergo further refining to remove impurities and adjust the composition of the alloy. Refining methods can include slag cleaning, …
Ferrochrome slag (FCS) is a by-product of ferrochrome industries and is produced during the extraction of ferrochrome from chromite ore. The chemical …
FTIR spectra for FS are obtained in the wave number range of 4000 cm-1 to 600 cm-1 and represent different absorption band characteristics as shown in Fig. 5.The important chromium peak Cr-O is exhibited at 608 cm-The hydroxyl- O–H bonds of 3441 cm − 1 wave number) and H-O–H vibrations with a 1638 cm − 1 wave number are important …
Raw ferrochrome slag (coarse aggregate) 0.307: 0.048: Panda et al. [20] Raw ferrochrome slag (fine aggregate) 1.238: 0.094: Concrete with ferrochrome slag coarse aggregate replacement (OPC) 0.035: 0.029: Concrete with ferrochrome slag coarse aggregate replacement (PSC) 0.020: 0.017: Concrete with …
Downloadable (with restrictions)! Huge amount of ferrochrome slag, a solid waste is being generated from submerged electric arc furnace during manufacturing of ferrochrome alloy. The waste slag contains about 6-12% chromium as chromium oxide and it has the potentiality of releasing hazardous chromium compounds. Although chromium exists in …
Sorbini was blue slag glass produced by Sowerby, but the Lealand Lake Superior Iron Company made Leland Blue Slag Glass, aka Leland Blue and Leland Blue Stone. This company was located at the …
Ferro chrome slag may contain chromium in +3 and +6 oxidation states. Separation and determination of chromium content of the slag samples collected from Jindal Ferro Alloys Corporation, (Kottha … Expand. 1. PDF. Save. Magnesium recovery from ferrochrome slag: kinetics and possible use in a circular economy.
Fu studied smelting medium- and low-carbon ferrochrome by argon-oxygen refining (AOD), it was claimed that the alkalinity of slag is an important factor affecting …
Various efforts are being made to use the industrial wastes as an alternate construction material to conserve the natural resources and effective utilization of the industrial waste to sustain the industrialization. But limited attempts have been made to characterize Indian ferrochrome slag as a construction material. In the work an effort …